Code Intellisense/autocomplete very slow on big java file.

[hongguifeng]

I have a java file that over 10000 lines, everytime code Intellisense/autocomplete about this class, it would take a long time (over 10 seconds ) to show the suggestion.

eclipse is fast in the same situation.

I tried to delete most of the code in that file, and code Intellisense/autocomplete is much faster.

Is there any way to speed up the parsing of large files?

Environment

• Operating System:win10 with wsl2
• JDK version:openjdk 1.11.0
• Visual Studio Code version: 1.56.2
• Java extension version:0.79.2

[fbricon]

can you try disabling all other Java related extensions? See if it helps?

[hongguifeng]

I have tried to disable other extensions, including "Visual Studio IntelliCode"，and it doesn't help.

In addition, when Intellisense parsing, the CPU usage rate is close to 60%

[hongguifeng]

Example :
https://github.com/openjdk/jdk/blob/master/src/java.base/share/classes/java/lang/Character.java

[testforstephen]

Does this mean you can reproduce it in a small file? How large is your project?

[hongguifeng]

@testforstephen
It should be, but I can't do it. ☹️
The point that is eclipse is fast in some situation, so I think there may be some settings that can make vscode faster ...

[parthasaradhie]

Im also facing the same issue. If the java file is small Intellisense/autocomplete is working good but if it is more than 500-800 lines then its taking a lot of time.

[nikitades]

Any updates on that?

[snjeza]

@nikitades Could you test VS Code 1.16.3?

[nikitades]

@snjeza What exactly do I have to do? Should I remove the original official extension before installing vsix one?

[snjeza]

@nikitades No, you shouldn't.